Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 07-14-2003, 06:42 PM
Registered User
 
Join Date: Jul 2003
Posts: 2
300E-heat always on!

A friend is having trouble with his 1989 300E. The heat seems to come on for no reason (out of defrosters and side vents) regardless of which (or any for that matter) buttons are pushed on the control panel or what the temp. wheel is set at. The air coming out is very hot. The AC will work and eventually over come the heat but often the only way he can stop the heat is to shut the car down. It happens every 2nd or 3rd time he is in the car.
Reply With Quote
  #2  
Old 07-14-2003, 08:09 PM
AF300E's Avatar
Don't Mention the War!
 
Join Date: Jul 2003
Location: Melbourne, Australia
Posts: 181
Have also had this problem, suspect duo-valves.
__________________
Andrew
300e 294,000mi
380sel 185,998mi
380se 309,980mi
Reply With Quote
  #3  
Old 07-14-2003, 08:46 PM
J.HIDALGO's Avatar
Registered User
 
Join Date: Jul 1999
Location: Jax, FL
Posts: 1,785
Duo-valves?

I think monovalve is more appropiate...
__________________
J.H.
'86 300E
Reply With Quote
  #4  
Old 07-15-2003, 01:45 AM
AF300E's Avatar
Don't Mention the War!
 
Join Date: Jul 2003
Location: Melbourne, Australia
Posts: 181
AS FAR AS I'M AWARE, ONLY CLIMATE CONTROL MODELS HAD A MONOVALVE
__________________
Andrew
300e 294,000mi
380sel 185,998mi
380se 309,980mi
Reply With Quote
  #5  
Old 07-15-2003, 01:54 AM
Registered User
 
Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
The 300E was sold only with the ACC in the US, no manual control models.

If the air only comes out the defrost and side vents, check the fuse -- default operation with no power is full heat on defrost with low speed or no blower. This happened on my brother's 300SDL in the winter, it wasn't until he was taking me somewhere and my feet got cold that we figured it out.

The fuse is probably corroded and loosing contact -- don't remember which one it is, but by now you need to check all of them.

Peter
__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 02:15 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page